Mechanical movement.



E. HARDS.

MECHANICAL MOVEMENT.

APPMGATION FILED 1111119.11109.

Patented Jan. 18,1910.

anomala:

UNITED STATES PATENT oEEroE.

EDWARD HARDS, OF PHOENIX, ARIZONA TERRITORY, 'ASSIGNOR OF- ONE-HALFTOLUTHER D. COGGINS, OF PHOENIX, ARIZONA TERRITORY.v

MECHANICAL MOVEMENT.

speciacation of Letters Patent. y Patented J an. 18, 1.910.

Application led May 19, 1909. Serial No. 496,994.

To all whom 'it may concern:

Be it known that I, EDWARD HAnos, a citizen of the United States,residing at Phoenix, in the county of Maricopa and Territory of Arizona,have invented a new and useful Mechanical Movement, of which thefollowing is a specification.

This invention relates to mechanical movements. its object being toprovide means for converting rotary motion into reciprocatory motion,the mechanism being especially designed for actuating pump rods and thelike, although it can be used for various other purposes and may bedriven by an engine, a wind wheel, or any other suitable motor.

lVith these and other objects in view the invention consists of certainnovel details of construction and combinations of parts hereinafter morefully described and pointed out in the claims.

In the accompanying drawings the preferred form of the invention hasbeen shown. In said drawings:-l `igure 1 is a view, partly in sectionand partly in elevation, of the mechanism constituting the presentinvention. Fig. 2 is a section on line A-B Fie. 1. Fig. 3 is a detailview of one of the deecting devices.

Referring to the figures by characters of reference l designates asubstantially rectangular guide body consisting of spaced similar frames2 connected at their outer longitudinal edges by webs 3. These webs arebolted or otherwise secured at their centers to diametrically opposedportions of a ring 4, which may, if preferred, be mounted on anysuitable support (not shown). This ring 4 also constitutes a bearing fora shaft 5, which may be driven in any suitable manner and which isprovided with a gear 6 arranged at the vcenter of the ring and betweenthe webs 3.

Secured upon one face of one of the frames 2 and adjacent eachlongitudinal edge thereof are alining guide rails 7 spaced apart asindicated in Fig. 1, the upper and lower ends of the respective railsheilig provided with removable extensions 8, bolted or otherwise securedin place.

The frames 2 are preferably connected at one end by means of a guidesleeve 9 withln which is loosely mounted a pump-rod 10 or the like, saidrod being attached at one end to a preferably rectangular frame 1l, convstituting a head, there being parallel longitudinall i the head7 anddesigned to alternately mesh with the gear 6 heretofore referred to, thedistance between the two racks being slightly greater than the diameterof the gear.- Arms 14 are arranged ,in pairs at the sides. of the head 11,l said arms being detachably secured to the head by mea'nsof bolts orin any other referredmanner, the securing means beinglnsertible into anyone of .theseries of openings 15 formed within the head. Each arm 14projects laterally from the head and is provided with spaced parallelears 16 and 17, the distance be-ftween these two earsbeing'slightlygreater than the width of the rail 7 and both ears being designed towork between the frames 2.

Interposed between the ends of the racks 12 and 13 are cross-bars 18,each of which has a tooth 19 projecting therefrom and in the directionof the center of the head 11.-

The ends of each bar 18 engage certain` teeth of the racks 12 and 13 andare held in place by means of holding strips 20, which are bolted orotherwise secured to opposite sides of the bar and have their endssecured to the sides of the frame or body 11.

Mounted upon the body 11 at diametric- 7 ally opposed corners thereofare rollers 21, and secured to the end portions of the guide frame 1 andin the paths of these rollers are deflecting strips 22. Each strip ispivotally mounted as shown at 23 and has one end yieldingly supported bya spring 24, which bears against alrear 25 extending from the frame 1. Arod 26 is slidably mounted within the ear and extends through the spring24, said rod being pivotally attached to the strip 22. y

As heretofore stated the shaft 5 may be actuated in any desired manner.The ear 6 rotates therewith and when rotating 1n the direction of thearrow in Fig. 1 will force the rack 12 downwardly and thus cause theears 16 and 17 at the right lside of the head `11 to travel along therails 7 adjacent thereto, said rails assuming positions between theears, as shown in Fig. 2. This operation will continue until the lowerarm 14 assumes a 'position below the lower rail 7 andthe upper extendingracks 12 and 13 within so t,

the path thereof, and at the same time the gear 6 moves into mesh withthe tooth 19 on the upper bar 18. Both ends of the head 11 are thusshifted laterally and simultaneously, so as to shift the ears 16 and 17at the left of the head into position to engage the adjoining 1'al'7.This lateral movement ofthe head will cease as soon as the tooth 19moves out of mesh with the gear G, and immediately subsequent theretothe head l1 will be shifted upwardly by the rotating gear, .the rails 7serving to guide the ears 16 and 17 during such movement. As soon as thehead reaches the upper limit of its movement the foregoing operationwill be reversed and 'obviously the constant rotation of gear 6 willthus produce a constant reciprocation of the head and of the rod 10attached to it. Should it be desired to shorten the stroke of the rod 10the bars 18 can be detached and then secured to the head 11 at pointscloser together. -The arms 14 can also be brought closer together andthe extensions 8 of the rails can be removed.

Instead of utilizing a pivoted strip 22 and a spring 24 for holding thestrip normally in a predetermined position, a spring helix such asindicated at 27 in Fig. 3, may be utilized, one end of the helix beingsecured to a stud 28 while the other end thereof is extended along astraight line to constitute a deflecting arm 29 having the same functionas the strip 22 heretofore referred to.

Obviously various changes may be made in the construction andarrangement of the parts without sacrificing any of the advantages of ordeparting from the spirit of the invention.

lVhat is claimed is 1. The combination with a revoluble gear, ofconnected oppesitely disposed racks, opposed parallel guides. meansmovable with` the racks for alternately engaging the guides, said meansbeing adjustable toward or away from each other, and means movable withthe racks for alternately en aging the rotating gear to bring the rac ssuccessively into mesh with the gear.

2. A device of the class described comprising parallel connected racks,a revoluble gear interposed therebetween, means movable with the racksfor engaging the gear upon the completion of the strokes of the racks,to shift the said racks successively into engagement with the gear, saidmeans being adjustable toward or away from each other, relatively fixedparallel guides, and means' movable with the racks for successivelyengaging said guides.

3. Mechanism of the class described comprising parallel connected racks,a revoluble gear interposed therebetween, the distance between the racksbeing greater than the' diameter of the gear, adjustable means movablewith the racks for successively engagant ing the gear during thecompletions of the strokes'of the racks to successively move the racksinto mesh with the gear, and means for maintaining each rack in meshwith the gear during the stroke of the rack, and resilient deflectingmeansin the paths of the racks. f Y

4. In mechanism of the class described a movable head having opposedparallel racks, a revoluble gear interposed between the racks, thedistance between the racks being greater than the diameter of the (rear,resilient delecting means in the path of the head, means upon the headfor engaging the gear to shift said head upon the completion of thestroke of the head to bring the fracks successively into mesh with thegear, said means coperating with the detlecting means and beingadjustable toward or away `from each other, and means for guiding thehead during each stroke thereof.

5. In mechanism of the class described a guide body, opposed adjustablerails therein, a head mounted to reciprocate within the body, meansoutstanding from the head for successively engaging the rails to guidethe head during the strokes thereof, a gear revolubly mounted within thehead, racks carried by the head, means movable with the racks forsuccessively engaging the gear during the completion of the strokes ofthe head to shift the racks successively into mesh with the gear, saidmeans being adjustable toward or away from each other, and resilientdelecting means carried by the body and coperating with said gearengagingmeans to shift the head.

6. The combination with a guide body, of a laterally shiftable head,racks carried thereby, a revoluble gear interposed between the racks,means upon the head cooperating with the gear to successively shift theracks into meslr with the gear, said means being adjustable toward oraway from each other, spring-controlled deliecting means within thebody, anti-friction devices carried by the head and movable against saiddeflecting means.

7. In mechanism of the class described a laterally shiftable head, saidhead being mounted to reciprocate longitudinally, cooperating movableand fixed means for guiding the head during the longitudinal movementthereof, opposed jirallel racks movable with the head, a gear mountedfor rotation between the racks, toothed bars interposed between andengaging the racks,

means for detachably securing the bars between the racks, said barsconstituting adjustable means for successive engagement by the gear forsuccessively shifting the racks into mesh with the gear.

8. In mechanism of the class described a laterally shiftable head, saidhead being mounted to reciprocate longitudinally, co-

operating movable and fixed means for guidable with the head, a gearmounted for rotation between the racks, and adjustable meanssuccessively engaged by the gear for successively shifting the racksinto mesh with the gear, and spring-controlled deiecting means in thepath of the head for facilitating the lateral shifting thereof.

9. Mechanism of the class described comprsing a laterally andlongitudinally movable head, coperating fixed and movable means forguiding the head during the longitudinal movement thereof, opposedparallel racks movable with the head, a gear revolubly mounted betweenthe racks, means actuated by the gear at the completion of eachlongitudinalmovement of the head for shifting the head laterally tobring the racks successively into mesh with thev gear, cushioneddetlecting devices'in lthe path of the head and coperating with saidlateral shifting means, and anti-friction devices carried by the headand cooperating with the cushioned deflecting devices.

In testimony that I claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

EDWARD HARDS.

Witnesses: J. L. MORSE, A. M. PECKA.

